The HP Envy x360 is a popular 2-in-1 laptop for work, study, and entertainment. But like all lithium-ion batteries, its internal battery will wear out over time. When the laptop starts behaving strangely on battery power, many users wonder: is my HP Envy x360 battery bad, or is something else wrong?
This guide explains the main warning signs of a failing battery, how to test it properly, and how to decide whether it’s time for a replacement. If your battery is clearly worn out or faulty, you can find compatible HP replacement batteries here:
Browse replacement batteries for HP laptops
Quick checklist: common signs of a bad HP Envy x360 battery
If you notice one or more of the following symptoms, your HP Envy x360 battery may be bad or near the end of its life:
- The laptop runs out of power very quickly, even after a full charge.
- Windows shows a “Consider replacing your battery” or “Battery capacity is very low” message.
- The battery percentage jumps suddenly (for example, from 40% to 5%) or the laptop shuts down unexpectedly.
- The laptop only works reliably when the charger is plugged in.
- The battery icon shows “Plugged in, not charging” and reset/calibration doesn’t help.
- HP diagnostics report a “Replace battery” status.
- The bottom cover is bulging or the touchpad is being pushed up (possible battery swelling – a safety risk).
One symptom alone doesn’t always guarantee the battery is bad. In the sections below, we’ll go deeper and show you how to separate real battery failures from charger, software or mainboard issues.
Symptom 1: Very short runtime, even with a full charge
The most obvious sign of a worn-out battery is dramatically reduced runtime. Examples:
- New laptop: 6–8 hours of light use on battery.
- Now: only 1–2 hours doing the same tasks, even after a full charge.
All lithium-ion batteries gradually lose capacity over hundreds of charge cycles. For an HP Envy x360 used daily, it’s normal to lose 20–30% capacity after a couple of years. But if your runtime has dropped by 50% or more, that’s a strong hint that the battery is no longer healthy.
Occasional short runtime can also be caused by heavy workloads or maximum brightness, so compare battery life under similar usage conditions (same apps, same brightness, same Wi-Fi usage).
Symptom 2: Windows battery warnings
Windows and HP tools will often warn you when the battery health is significantly degraded. You may see messages like:
- “Consider replacing your battery.”
- “Your battery capacity is very low.”
- “There is a problem with your battery, so your computer might shut down suddenly.”
These appear when the system detects that the battery can no longer hold enough charge or that its wear level has crossed a certain threshold. While not perfect, these warnings are usually reliable indicators that the battery is approaching the end of its usable life.
Symptom 3: Sudden shutdowns or big jumps in battery percentage
A healthy battery should discharge gradually. If your HP Envy x360:
- Shuts down suddenly at 20–30% without any warning; or
- Jumps from, for example, 50% to 5% or 0% in a few minutes;
then the battery may have high internal resistance or unbalanced cells. Under load, the voltage drops quickly, and the laptop thinks the battery is empty even though the percentage looked fine a moment ago.
Sometimes recalibration can improve the accuracy of the percentage reading, but if sudden shutdowns persist, the underlying cells are likely worn out.
Symptom 4: “Plugged in, not charging” and stuck percentage
Another common problem is when the battery percentage stays stuck (for example at 80% or 0%) and shows “Plugged in, not charging”. This can have multiple causes:
- Battery health is so poor that the controller limits charging.
- Power management settings or vendor tools are enforcing a charge limit.
- Charger, DC jack or mainboard power circuitry problems.
To narrow it down for the Envy x360:
- Try a hard reset / EC reset (shut down, unplug charger, hold the power button 15–20 seconds, reconnect and boot).
- Reset Windows power plans to default and disable any third-party battery “optimizer” tools.
- If possible, test with another known-good HP charger.
If, after these steps, the battery still won’t charge properly and diagnostics say “Replace”, it is very likely the battery itself is bad.
Symptom 5: Physical swelling or deformation (urgent)
Swelling is one of the most serious signs of a bad battery. Possible indicators include:
- The bottom cover of the Envy x360 is bulging.
- The touchpad is lifted or feels uneven.
- You notice a gap opening between the case parts.
This can happen when gas builds up inside aging lithium-ion cells. A swollen battery is a safety risk and should not be ignored.
If you suspect swelling:
- Stop using the laptop on battery power.
- Shut it down and avoid pressing on the swollen area.
- Do not attempt to puncture or squeeze the battery.
- Arrange for a professional replacement as soon as possible.
In this situation, the battery is definitely “bad” and needs to be replaced, not reset.
Use a battery report to see if your Envy x360 battery is bad
Instead of guessing, you can use a built-in Windows tool to generate a battery report and see the actual health of your HP Envy x360 battery.
How to generate the Windows battery report
- Right-click the Start button and select Windows Terminal (Admin) or Command Prompt (Admin).
- Type the following command and press Enter:
powercfg /batteryreport - You’ll see a message that a report has been saved, usually to:
C:\Users\YourUserName\battery-report.html - Open that file in your web browser.
What to look for in the battery report
In the report, find the section that shows:
- DESIGN CAPACITY – the original capacity when new (for example 52,000 mWh).
- FULL CHARGE CAPACITY – the current maximum capacity the battery can hold now.
Compare the two values:
- If Full Charge Capacity is close to Design Capacity (for example 90% or above), the battery is still healthy.
- If Full Charge Capacity is much lower (for example 40–60% of Design Capacity), then the battery is heavily worn and effectively “bad” for mobile use.
Also look at the “Battery life estimates” section. If the “At full charge” estimate is much shorter than “At design capacity,” that confirms a significant loss of runtime.
Use HP diagnostics to confirm battery status
HP provides hardware diagnostics for many Envy x360 models. These tests can give a clear pass/fail style result.
Running HP PC Hardware Diagnostics (UEFI)
- Shut down your HP Envy x360 completely.
- Turn it on and immediately tap Esc repeatedly until the Startup Menu appears.
- Press F2 to open HP PC Hardware Diagnostics.
- Select Component Tests → Power → Battery.
- Run the Battery Check and wait for the result.
Typical outcomes include:
- OK / Passed – the battery is functioning within normal parameters.
- Calibrate – capacity reading may be off; perform a full charge/discharge calibration.
- Replace – HP considers the battery no longer healthy. This is a strong confirmation that the battery is bad.
If HP diagnostics clearly say “Replace”, no software fix or reset will restore the original capacity – the cells themselves are worn out.
Is it the battery, charger, or something else?
Before you decide the battery is bad, it’s smart to check that the problem isn’t actually caused by another component:
- Charger/adaptor: If the laptop charges normally with another compatible HP charger, the original adapter may be faulty.
- DC jack / charging port: Loose power jack, damaged cable or connector can cause intermittent charging. Wiggling the plug should not interrupt charging.
- System board: In rare cases, mainboard power circuits fail. HP diagnostics and a technician’s inspection can help confirm this.
However, if:
- The HP charger is known good;
- Windows and HP diagnostics report low capacity or “Replace battery”;
- You experience short runtime and sudden shutdowns;
then the evidence clearly points to a bad battery rather than a charger or board issue.
What to do if your HP Envy x360 battery is bad
Once you’re confident that the battery is the problem, the solution is to replace it with a compatible, high-quality pack. For the Envy x360, the battery is internal, so you cannot simply slide it out; it sits under the bottom cover and connects by a cable.
You have two main options:
1. DIY replacement
- Good if you are comfortable opening laptops and following detailed guides.
- You’ll need precision screwdrivers and a plastic pry tool.
- Removing the bottom cover, disconnecting the old battery and installing the new one is usually straightforward if done carefully.
2. Professional installation
- Best if you are not confident working with internal components.
- You can still buy a quality replacement battery and ask a local repair shop to install it.
- This is far cheaper than buying a new laptop and often faster than shipping it to an official service centre.
Either way, choosing the right replacement battery is crucial.
Choosing a replacement battery for your HP Envy x360
When you buy a new battery, make sure it:
- Matches the HP spare part number printed on your original battery (for example LK03XL, RR04XL, L11119-855, etc.).
- Has the same voltage and a compatible capacity (Wh) and shape.
- Includes built-in safety protections (over-charge, over-discharge, temperature, short-circuit).
- Comes from a specialised laptop battery supplier with clear warranty terms.
You can browse compatible HP laptop batteries, including many HP Envy x360 models, here:
View HP Envy x360 compatible batteries
Conclusion: how to know if your HP Envy x360 battery is bad
You can tell an HP Envy x360 battery is bad when several of these signs appear together:
- Greatly reduced runtime compared to when the laptop was new.
- Windows or HP diagnostics warns you to “replace” the battery.
- Battery percentage jumps, or the laptop shuts down suddenly at higher percentages.
- “Plugged in, not charging” persists even after reset and charger checks.
- Battery report shows much lower Full Charge Capacity than Design Capacity.
- Physical swelling or case deformation is visible (critical safety issue).
When these symptoms are present, it is safer and more economical to replace the battery than to keep fighting with an unreliable power source. A good replacement can restore your HP Envy x360’s mobility and stability for several more years of use.
When you are ready to replace a bad battery, start by checking compatible options here:
https://www.buy-a-charger.co.uk/pcbattery/product-category/battery-for-hp/.